WO1997047348A1 - Tube de ventilation, destine particulierement a des dispositifs medicaux - Google Patents

Tube de ventilation, destine particulierement a des dispositifs medicaux Download PDF

Info

Publication number
WO1997047348A1
WO1997047348A1 PCT/US1997/009770 US9709770W WO9747348A1 WO 1997047348 A1 WO1997047348 A1 WO 1997047348A1 US 9709770 W US9709770 W US 9709770W WO 9747348 A1 WO9747348 A1 WO 9747348A1
Authority
WO
WIPO (PCT)
Prior art keywords
ventilation tube
tube
medical devices
ridges
tubular body
Prior art date
Application number
PCT/US1997/009770
Other languages
English (en)
Inventor
Lucio Gibertoni
Paolo Bergamaschi
Original Assignee
Mallinckrodt Medical, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mallinckrodt Medical, Inc. filed Critical Mallinckrodt Medical, Inc.
Priority to US09/202,332 priority Critical patent/US6219490B1/en
Priority to DE69738081T priority patent/DE69738081T2/de
Priority to CA002257838A priority patent/CA2257838C/fr
Priority to JP10501692A priority patent/JP2000512518A/ja
Priority to AU32319/97A priority patent/AU3231997A/en
Priority to EP97927994A priority patent/EP0956068B1/fr
Publication of WO1997047348A1 publication Critical patent/WO1997047348A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/1095—Preparation of respiratory gases or vapours by influencing the temperature in the connecting tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply

Definitions

  • the present invention relates to a ventilation tube particularly for medical devices.
  • An electric resistor is currently used to solve the problem, said resistor being located inside the plastic tube, so as to heat the air to prevent condensation of the moisture contained therein.
  • This structure has the drawback that it is very heavy and that it considerably reduces the transparency, lightness and flexibility characteristics which are typical of a PVC tube.
  • Anothe r drawback resides in the costs , since the sheathing of the tube , in addition to increasing the amount of plastics being used , requires much more complex and expensive production technologies than the ordinary spiral tube .
  • the aim of the present invention is to solve the above problems, by providing a ventilation tube particularly for medical devices which allows to provide uniform heating on the entire surface of the tube affected by the flow of the gaseous substance, thus helping to eliminate the regions where liquid might condense.
  • a particular object of the invention is to provide a ventilation tube in which the heating element is not located inside the tube, so that any burns do not produce fumes which are fed directly to the patient, and is furthermore capable of maintaining the flexibility, lightness and transparency characteristics of the spiral tube substantially unchanged.
  • Another object of the present invention is to provide a ventilation tube which allows to obtain tubes which are already equipped with the heating element, with the possibility of performing extremely simple connections.
  • Another object of the present invention is to provide a ventilation tube particularly for medical devices, which can be easily obtained starting from commonly commercially available elements and materials and which is also competitive from a merely economical point of view.
  • FIG 1 is a partially cutout schematic view of a portion of ventilation tube according to the present invention
  • figure 2 is an enlarged-scale sectional view of the tube
  • figure 3 is a view of the detail of the embedding of the electric wires.
  • the ventilation tube particularly for medical devices is generally designated by the reference numeral 1 and comprises a tubular body 2 made of flexible plastics, such as PVC, which is externally provided with ridges formed by a spiral ridge 3 which is rigidly coupled to the outer surface of the tubular body 2 since it is formed in a single extrusion process and is made of a more rigid plastics which allows to constitute the conventional spiral of a tube.
  • a tubular body 2 made of flexible plastics, such as PVC, which is externally provided with ridges formed by a spiral ridge 3 which is rigidly coupled to the outer surface of the tubular body 2 since it is formed in a single extrusion process and is made of a more rigid plastics which allows to constitute the conventional spiral of a tube.
  • the particularity of the invention is constituted by the fact that two mutually spaced electric wires 4 and 5 are embedded directly inside the spiral ridge 3 and constitute an electric resistor.
  • the two electric wires are not in mutual contact and in practice the material that forms the ridge constitutes the electrical insulation for the copper wires.
  • two electric wires are used so that by simply joining them at one end an electric resistor is obtained with the possibility of connecting the remaining two ends to the electric power source.
  • the tubular body is advantageously made of transparent plastics, so that the tube remains transparent, and the direct insertion of the copper wires in the spiral ridge allows to considerably contain the weight of the tube as well as its manufacturing cost.
  • Another advantage obtained is constituted by the fact that the uniform distribution of the wires that form the electric resistor along the surface allows uniform heating in all points of the electrical surface while having excellent electrical safety characteristics, since the electric wires are directly embedded in the ridge, which is monolithic with the tube.
  • the materials employed, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements.

Abstract

Cette invention se rapporte à un tube de ventilation (1) chauffé comportant au moins un filament chauffant (4)(5) noyé à l'intérieur d'une arête hélicoïdale (3) courant le long de la paroi externe (2) dudit tube.
PCT/US1997/009770 1996-06-13 1997-06-10 Tube de ventilation, destine particulierement a des dispositifs medicaux WO1997047348A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US09/202,332 US6219490B1 (en) 1996-06-13 1997-06-10 Ventilation tube, particularly for medical devices
DE69738081T DE69738081T2 (de) 1996-06-13 1997-06-10 Belüftungsrohr insbesondere für medizinische vorrichtungen
CA002257838A CA2257838C (fr) 1996-06-13 1997-06-10 Tube de ventilation, destine particulierement a des dispositifs medicaux
JP10501692A JP2000512518A (ja) 1996-06-13 1997-06-10 医療装置用換気管
AU32319/97A AU3231997A (en) 1996-06-13 1997-06-10 Ventilation tube, particularly for medical devices
EP97927994A EP0956068B1 (fr) 1996-06-13 1997-06-10 Tube de ventilation, destine particulierement a des dispositifs medicaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1996MI000435U IT240734Y1 (it) 1996-06-13 1996-06-13 Struttura di tubo di ventilazione particolarmente per apparecchimedicali
ITMI96U000435 1996-06-13

Publications (1)

Publication Number Publication Date
WO1997047348A1 true WO1997047348A1 (fr) 1997-12-18

Family

ID=11373520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/009770 WO1997047348A1 (fr) 1996-06-13 1997-06-10 Tube de ventilation, destine particulierement a des dispositifs medicaux

Country Status (9)

Country Link
EP (1) EP0956068B1 (fr)
JP (1) JP2000512518A (fr)
AT (1) ATE371471T1 (fr)
AU (1) AU3231997A (fr)
CA (1) CA2257838C (fr)
DE (1) DE69738081T2 (fr)
ES (1) ES2293658T3 (fr)
IT (1) IT240734Y1 (fr)
WO (1) WO1997047348A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008055308A1 (fr) * 2006-11-08 2008-05-15 Resmed Ltd Conduit destiné à être utilisé dans un appareil respiratoire
WO2008095245A1 (fr) * 2007-02-09 2008-08-14 Resmed Ltd Système d'humidification destiné à un appareil respiratoire
WO2009022004A2 (fr) * 2007-08-14 2009-02-19 Plastiflex Belgium Système respiratoire
WO2011162622A1 (fr) 2010-06-22 2011-12-29 Fisher & Paykel Healthcare Limited Composants pour circuits médicaux
CN103083773A (zh) * 2013-02-21 2013-05-08 东莞永胜医疗制品有限公司 一种螺纹加热管及其制备方法
US8733349B2 (en) 2009-07-31 2014-05-27 Resmed Limited Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus
US9572949B2 (en) 2013-02-01 2017-02-21 Resmed Limited Wire heated tube with temperature control system for humidifier for respiratory apparatus
US9802022B2 (en) 2008-03-06 2017-10-31 Resmed Limited Humidification of respiratory gases
US11013875B2 (en) 2005-08-15 2021-05-25 ResMed Pty Ltd Low cost CPAP flow generator and humidifier assembly

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0521349D0 (en) 2005-10-20 2005-11-30 Intersurgical Ltd Improvements relating to ventilation tubes
CA3177636A1 (fr) 2011-06-03 2012-12-06 Fisher & Paykel Healthcare Limited Tubes medicaux et procedes de fabrication
CN107361960B (zh) 2012-11-14 2020-11-06 费雪派克医疗保健有限公司 用于呼吸回路的分区加热
US11058844B2 (en) 2012-12-04 2021-07-13 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
US10814091B2 (en) 2013-10-24 2020-10-27 Fisher & Paykel Healthcare Limited System for delivery of respiratory gases
CA2934235C (fr) 2013-12-20 2023-02-28 Fisher & Paykel Healthcare Limited Raccordements de systeme d'humification
CN111265754B (zh) 2014-03-17 2023-06-06 费雪派克医疗保健有限公司 用于呼吸系统的医用管
CA2998319A1 (fr) 2015-09-09 2017-03-16 Po-Yen Liu Chauffage de zone de circuits respiratoires
AU2017381865B2 (en) 2016-12-22 2023-09-28 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
CN113713221B (zh) * 2019-11-20 2023-02-03 王晓霞 一种呼吸内科雾化机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE669254C (de) * 1938-12-20 Bernh Draeger Atemmaske, insbesondere fuer Hoehenatemgeraete
GB2173274A (en) * 1985-04-04 1986-10-08 Boc Group Plc Delivery hose for medical humidifier
US5357948A (en) * 1992-01-18 1994-10-25 Heinz Eilentropp Heatable respiratory hose

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891007A (en) * 1972-07-03 1975-06-24 Dayco Corp Exteriorly corrugated hose of composite materials
US5454061A (en) * 1994-05-27 1995-09-26 Steward Plastics, Inc. Apparatus and method for making flexible tubing with helically wound heating conductor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE669254C (de) * 1938-12-20 Bernh Draeger Atemmaske, insbesondere fuer Hoehenatemgeraete
GB2173274A (en) * 1985-04-04 1986-10-08 Boc Group Plc Delivery hose for medical humidifier
US4686354A (en) * 1985-04-04 1987-08-11 The Boc Group Plc Inhalation apparatus
US5357948A (en) * 1992-01-18 1994-10-25 Heinz Eilentropp Heatable respiratory hose

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11298482B2 (en) 2005-08-15 2022-04-12 ResMed Pty Ltd Low cost CPAP flow generator and humidifier assembly
US11013875B2 (en) 2005-08-15 2021-05-25 ResMed Pty Ltd Low cost CPAP flow generator and humidifier assembly
AU2007317198B2 (en) * 2006-11-08 2013-08-22 ResMed Pty Ltd Conduit for use in a respiratory apparatus
US11712535B2 (en) 2006-11-08 2023-08-01 ResMed Pty Ltd Humidifier for respiratory apparatus
US11338104B2 (en) 2006-11-08 2022-05-24 ResMed Pty Ltd Humidifier for respiratory apparatus
WO2008055308A1 (fr) * 2006-11-08 2008-05-15 Resmed Ltd Conduit destiné à être utilisé dans un appareil respiratoire
US9855398B2 (en) 2006-11-08 2018-01-02 Resmed Limited Humidifier for respiratory apparatus
US11129955B2 (en) 2007-02-09 2021-09-28 ResMed Pty Ltd Humidification arrangement for a respiratory apparatus
US9987453B2 (en) 2007-02-09 2018-06-05 Resmed Limited Humidification arrangement for a respiratory apparatus
US11623062B2 (en) 2007-02-09 2023-04-11 ResMed Pty Ltd Humidification arrangement for a respiratory apparatus
US8944056B2 (en) 2007-02-09 2015-02-03 Resmed Limited Humidification arrangement for a respiratory apparatus
US11207485B2 (en) 2007-02-09 2021-12-28 ResMed Pty Ltd Humidification arrangement for a respiratory apparatus
WO2008095245A1 (fr) * 2007-02-09 2008-08-14 Resmed Ltd Système d'humidification destiné à un appareil respiratoire
WO2009022004A2 (fr) * 2007-08-14 2009-02-19 Plastiflex Belgium Système respiratoire
WO2009022004A3 (fr) * 2007-08-14 2009-06-18 Plastiflex Belgium Système respiratoire
US9119933B2 (en) 2007-08-14 2015-09-01 Plastiflex Group Respiratory system
US9802022B2 (en) 2008-03-06 2017-10-31 Resmed Limited Humidification of respiratory gases
US11033698B2 (en) 2009-07-31 2021-06-15 ResMed Pty Ltd Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus
US11707587B2 (en) 2009-07-31 2023-07-25 ResMed Pty Ltd Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus
US11607512B2 (en) 2009-07-31 2023-03-21 ResMed Pty Ltd Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus
US10086158B2 (en) 2009-07-31 2018-10-02 Resmed Limited Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus
US8733349B2 (en) 2009-07-31 2014-05-27 Resmed Limited Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus
US9872967B2 (en) 2010-06-22 2018-01-23 Fisher & Paykel Healthcare Limited Components for medical circuits
EP2585163A1 (fr) * 2010-06-22 2013-05-01 Fisher & Paykel Healthcare Limited Composants pour circuits médicaux
WO2011162622A1 (fr) 2010-06-22 2011-12-29 Fisher & Paykel Healthcare Limited Composants pour circuits médicaux
US10688270B2 (en) 2010-06-22 2020-06-23 Fisher & Paykel Healthcare Limited Components for medical circuits
EP2585163A4 (fr) * 2010-06-22 2014-12-10 Fisher & Paykel Healthcare Ltd Composants pour circuits médicaux
US9468733B2 (en) 2010-06-22 2016-10-18 Fisher & Paykel Healthcare Limited Components for medical circuits
EP3146994A1 (fr) * 2010-06-22 2017-03-29 Fisher&Paykel Healthcare Limited Composants pour circuits médicaux
US10363382B2 (en) 2013-02-01 2019-07-30 ResMed Pty Ltd Wire heated tube with temperature control system for humidifier for respiratory apparatus
US11260186B2 (en) 2013-02-01 2022-03-01 ResMed Pty Ltd Wire heated tube with temperature control system for humidifier for respiratory apparatus
US9572949B2 (en) 2013-02-01 2017-02-21 Resmed Limited Wire heated tube with temperature control system for humidifier for respiratory apparatus
US11779719B2 (en) 2013-02-01 2023-10-10 ResMed Pty Ltd Wire heated tube with temperature control system for humidifier for respiratory apparatus
CN103083773A (zh) * 2013-02-21 2013-05-08 东莞永胜医疗制品有限公司 一种螺纹加热管及其制备方法

Also Published As

Publication number Publication date
CA2257838C (fr) 2003-05-06
ES2293658T3 (es) 2008-03-16
DE69738081T2 (de) 2008-05-21
ITMI960435U1 (it) 1997-12-13
ITMI960435V0 (fr) 1996-06-13
AU3231997A (en) 1998-01-07
CA2257838A1 (fr) 1997-12-18
JP2000512518A (ja) 2000-09-26
EP0956068B1 (fr) 2007-08-29
EP0956068A4 (fr) 2003-02-05
EP0956068A1 (fr) 1999-11-17
IT240734Y1 (it) 2001-04-11
DE69738081D1 (de) 2007-10-11
ATE371471T1 (de) 2007-09-15

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